This work is about cryptography in general but also how the encryption works, and what's needed for encryption to work. I will also take up a little around the history around the encryption..

Change is a natural state for both people and institutions, but as the surrounding world moves faster it becomes important to quickly be able to adjust to new conditions. Customers? force of negotiation increases as the global competition grows. One factor that becomes more vital to customers is the amount of quality standard a company can offer them. Several factors are essential if a work of change will be considered a successful investment, where the change can be perceived in both a positive and negative way for an employee.

Municipal safety work is an issue frequently discussed. The new legislation about accident prevention obeys the Swedish municipality to present an action program for accident prevention. In Borlänge municipality there has been no sanctioned proposal for a program. This report presents the problems found and gives proposals for improvements in the future safety work. The guiding words should be unambiguousness, able to control and not too complicated.

Wermland was affected by the Spanish flu like the Swedish national average, about a half percentage of Wermlands population would lose their lives to the flu during the autumn 1918. The flu has for many fallen into oblivion. This oblivion is so wide spread that it´s possible to talk about a "collective forgetfulness". The society have selected to remember 1918 for "when the guns went quiet on the western front" and not for the millions who died from the treacherous Spanish flu. The world had already suffered enough from the four years of war that had been fought, thus the victims of the flu would be honored but would soon fade in to oblivion.  When you investigate deeper you get the picture that the national average don´t do Wermland and its cities or rural areas any justice when a large variations seems to occur within regional areas.

In the summer of 2009 the High Line opened in New York, a park built on an out-of use elevated rail viaduct. The park meanders its way through the buildings and allows the visitor to see the city from a totally different perspecive than we are used to.I have made a Design proposal in Eriksdalslunden, Stockholm, with inspiration from the High Line. The proposal is based on design ideas of a park I logically call the Low Line, as the place isn't elevated as in New York, but lowered. The two places have some similarities, mainly the strong urban identity and the tracks crossing both areas. They also have very obvious differences, above all the fact that Eriksdalslunden is situated in a swale and is defined in a third dimension by the high bridges that crosses the area.The High Line is designed by James Corner Field Operations, and they have been working using their motto 'Keep it Simple, Keep it Wild, Keep it Quiet and Keep it Slow' during the whole process, words that normally aren't associated to Manhattan.

AbstractDrinking water is an important resource on Earth both for humans and animals. Although most of the surface is covered by water only a small quantity is available as drinking water. Our manner of living creates a lot of pollution which has an environmental impact. Groundwater has a protracted turnover time in the soil and it can take many years before the effects of human impact are detected. The Swedish environmental object is ?Good groundwater quality? which aims to provide a safe and sustainable supply of drinking water today and in the future.

The business potential of software defined radio (SDR) technology is studied by evaluating whether or not its characteristics correspond to those particular to a disruptive technology. The maturity of the SDR technology concept is illuminated by analyzing the opinions and perspectives of a selection of representatives for different stakeholders in the wireless communications market. Characteristics as, for example, the degree of consensus about the utility of SDR technology and the awareness of features and limitations are studied by application of the theory of technological frames. This theory helps us understand how and when technology evolution takes place. Finally we describe the value network structures of some potentially viable application areas for SDR and suggest some possible business opportunities based on SDR technology.This thesis is carried out as a case study and the research data is obtained from secondary sources, such as literature and Internet publications as well as interviews with people well experienced in the field of wireless communications.

Background: Relationships are really important for companies in order to becompetitive today and in these relationships is it important to feel trust to the other companies. There is therefore necessary to find out how companies work to create trust between themselves and their customers.Purpose: The purpose of this report is to examine and explain how staffing companies work to build trust in their relationships with B2B clients through examination of the conceptual model, creating a theoretical contribution.Research question: How do recruiters at staffing companies work to create trust between themselves and the customer?Methodology: The study adopted a quality research method with a deductive approach where the focus wasg on describing and analyzing. The data was collected primarily through semi-­?structured interviews.Research findings: Through the study?s interviews and their results is it possible to see that staffing companies in Växjö is working with trust.

During the period 1905 to 1940 it was possible to get a loan from the state to buy land and build a small farm or a house in rural areas. This loan act and its effects have been studied earlier in different ways, but never as a total study for a geographic region. The region Malmöhus Län has been chosen. The purpose of this paper is to study in which parts of the area loans were taken and who sold the land that was used for these purposes. Earlier studies have looked at a larger geographical area for some specific years.

Background: The majority of nurses experience work relatedstress, which can lead to a negative impact on patient care. Thestress can be handled by coping strategies. Aim: To illuminatecoping strategies among nurses experiencing work relatedstress. Method: The study has been accomplished as aliterature study, with a systematic review of scientific articles.Findings: Following coping strategies appeared: problemsolving, long-term strategies, passive strategies, leisurestrategies, social support and mental strategies. Conclusion:Awareness of coping strategies for dealing with work relatedstress, can lead to improvement in patient care..

In urban planning and design today interventions tend to take place in already existing areas and inevitably effect also surrounding areas. The many parties involved in any change leads to a demand for a shared language around these areas. This thesis aim to, through understanding and communicating a site, Stora Södergatan in Lund Sweden, inspire to a novel way of looking at an urban site preceding design- or planning interventions. Based on a theoretical framework where site is considered as a relational construct, material as well as immaterial, a framework for site thinking is constructed. Further, with theory of representation, the communication of the site is emphasized and accounted for as part of the framework.

This essay is written at the university of Linköping and is a part of the teachers education. The intire essay is available on CD-rom. Its content is directed towards teachers who entirely or partly works, or want to work, in computereducation. The CD-rom contains both textmaterial and presentations, with teacherinstructions, wich are directly appliable in teaching computers. The teachingmaterial on the CD-rom is based on an empiric survey with different computerteachers.

This work has treated the subject of gender, with demarcation against the norms regarding appearance and beauty, conveyed by the media and how it affects society. This is expressed through social satire cartoons. This work has also led to an exploration of the importance of a personal drawing style and how it manifests itself..

This thesis which is about working with mathematics teaching has no effect/impact on performance and understanding of pupils. The study is intended to gain insight on working in mathematics education which has an impact on performance and understanding of students who are ethnically Swedish and foreign ethnic. In order to compare the ethnic Swedish and foreign students of ethnic understanding, I judged from their performance on the tests taken in year three. The qualitative approach permeated the work, both interviews and observations which were included in the survey. The qualitative study was chosen to get an understanding of how mathematics teaching is conducted in two different areas.

The term "Project" have become a growing work model that exist in almost all bransches. A project is a work effort made over a finite period of time with a start and a finish to create a unique product, service, or result. Science shows that time limitation has an impact on humans to perform under pressure, which challanges the contributor to deliver. This report contains an examination about project management, both coming from scientific results and an external business. The point of this study is to bring ideas of improvement, which can make the work method more effective in this company..